Add a boilerplate wxwidgets example.

Makefile

@@ -48,9 +48,10 @@ export CXX = g++
 export AR = ar rc
 export RANLIB = ranlib
 export STRIP = strip
-export CFLAGS += $(shell pkg-config --cflags $(PACKAGES))
+export CFLAGS += $(shell pkg-config --cflags $(PACKAGES)) $(shell wx-config --cflags)
 export LDFLAGS +=
 export LIBS += $(shell pkg-config --libs $(PACKAGES))
+export GUILIBS += $(shell wx-config --libs)
 export EXTENSION =
 
 ifeq ($(shell uname),Darwin)

mkninja.sh

@@ -551,6 +551,9 @@ buildlibrary libfrontend.a \
     src/fe-write.cc \
     src/fluxengine.cc \
 
+buildlibrary libgui.a \
+    src/gui/main.cc
+
 buildprogram fluxengine \
     libfrontend.a \
     libformats.a \
@@ -561,6 +564,10 @@ buildprogram fluxengine \
     libfmt.a \
     libagg.a \
 
+buildprogram fluxengine-gui \
+    -rule linkgui \
+    libgui.a
+
 buildlibrary libemu.a \
     dep/emu/fnmatch.c
 

src/gui/main.cc

@@ -0,0 +1,70 @@
+#include <wx/wxprec.h>
+#ifndef WX_PRECOMP
+    #include <wx/wx.h>
+#endif
+
+class MyApp : public wxApp
+{
+public:
+    virtual bool OnInit();
+};
+
+class MyFrame : public wxFrame
+{
+public:
+    MyFrame();
+private:
+    void OnHello(wxCommandEvent& event);
+    void OnExit(wxCommandEvent& event);
+    void OnAbout(wxCommandEvent& event);
+};
+enum
+{
+    ID_Hello = 1
+};
+wxIMPLEMENT_APP(MyApp);
+bool MyApp::OnInit()
+{
+    MyFrame *frame = new MyFrame();
+    frame->Show(true);
+    return true;
+	}
+
+MyFrame::MyFrame()
+        : wxFrame(NULL, wxID_ANY, "Hello World")
+{
+    wxMenu *menuFile = new wxMenu;
+    menuFile->Append(ID_Hello, "&Hello...\tCtrl-H",
+                     "Help string shown in status bar for this menu item");
+    menuFile->AppendSeparator();
+    menuFile->Append(wxID_EXIT);
+    wxMenu *menuHelp = new wxMenu;
+    menuHelp->Append(wxID_ABOUT);
+    wxMenuBar *menuBar = new wxMenuBar;
+    menuBar->Append(menuFile, "&File");
+    menuBar->Append(menuHelp, "&Help");
+    SetMenuBar(menuBar);
+    CreateStatusBar();
+    SetStatusText("Welcome to wxWidgets!");
+	    Bind(wxEVT_MENU, &MyFrame::OnHello, this, ID_Hello);
+    Bind(wxEVT_MENU, &MyFrame::OnAbout, this, wxID_ABOUT);
+    Bind(wxEVT_MENU, &MyFrame::OnExit, this, wxID_EXIT);
+}
+
+void MyFrame::OnExit(wxCommandEvent& event)
+{
+    Close(true);
+}
+
+void MyFrame::OnAbout(wxCommandEvent& event)
+{
+    wxMessageBox("This is a wxWidgets Hello World example",
+                 "About Hello World", wxOK | wxICON_INFORMATION);
+}
+
+void MyFrame::OnHello(wxCommandEvent& event)
+{
+    wxLogMessage("Hello world from wxWidgets!");
+}
+
+